So excited getting this running on my server Having small issue though, I have followed this guide: https://www.digitalocean.com/community/tutorials/how-to-secure-apache-with-let-s-encrypt-on-ubuntu-14-04 but does not go through successfully. I got this message:
Failed authorization procedure. mydomain.com (tls-sni-01): urn:acme:error:authorized :: the client lacks sufficient authorization :: incorrect validation certificate for tls-sni-01 challenge.
Anybody got idea why it is doing this?